<template >
    <div>
        <!--面包屑导航区-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!--卡片视图区域-->
        <el-card>
            <!--搜索框与添加-->
             <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
             </el-row>
             <!--用户列表区-->
            <!-- <el-table :data="userlist">
            <el-table-colum label="姓名"></el-table-colum>
            </el-table> -->
            <el-table :data="userlist"  border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username" width="180"></el-table-column>
                <el-table-column label="邮箱" prop="email" width="180"></el-table-column>
                <el-table-column label="电话" prop="mobile" width="180"></el-table-column>
                <el-table-column label="角色" prop="role_name" width="180"></el-table-column>
                <el-table-column label="状态" prop="mg_state" width="180">
                    <!--作用域插槽-->
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180">
                    <template slot-scope="scope">
                        <!--修改按钮-->
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <!--删除按钮-->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <!--分配角色按钮-->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!--分页区域-->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 3, 5]"
            :page-size="queryInfo.pageSize" layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>
        <!--添加用户的对话框-->
        <el-dialog title="添加用户"
        :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
        <!--内容主体区域-->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <!--底部区域-->
        <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
        </el-dialog>

        <!--修改用户的对话框-->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible"  width="50%" @close="editDialogClosed">
          <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" >
            <el-form-item label="用户名">
              <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
              <el-input v-model="editForm.email" ></el-input>
            </el-form-item>
            <el-form-item label="手机号" prop="mobile">
              <el-input v-model="editForm.mobile" ></el-input>
            </el-form-item>
          </el-form>
          <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
          </span>
        </el-dialog>

        <!--分配角色的对话框-->
        <el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
   <div>
    <p>当前的用户:{{userInfo.username}}</p>
    <p>当前的角色:{{userInfo.role_name}}</p>
    <p>分配新角色：
      <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
   </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="savaRoleInfo">确 定</el-button>
  </span>
</el-dialog>
    </div>
</template>

<script>
export default {
  data() {
    //  验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
    //  验证邮箱的正则表达式
    const regEmail =/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if(regEmail.test(value)) {
      //合法的邮箱
      return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    var checkMobile = (rule, value, cb) =>{
      //验证手机号的正则表达式
    const regMobile =/^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
    if(regMobile.test(value)) {
      //合法的手机号
      return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    //  获取用户列表的参数对象
    return {
      queryInfo: {
        query: '',
        //  当前的页数
        pagenum: 1,
        //  当前每页显示的页数
        pagesize: 5
      },
      userlist: [],
      total: 0,
      //    控制添加用户对话框的显示与隐藏
      addDialogVisible: false ,
      //    添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //    添加用户的表单数据验证规则的对象
      addFormRules: {
      username: [{
        required: true, message: '请输入用户名', trigger: 'blur'
      }, { min: 3,
        max: 10,
        message: '用户名的长度在3~10个长度',
        trigger: 'blur' }],
        password: [{
        required: true, message: '请输入密码', trigger: 'blur'
      }, { min: 6,
        max: 15,
        message: '用户名的长度在6~15个长度之间',
        trigger: 'blur' }],
        email: [{
        required: true, message: '请输入邮箱', trigger: 'blur' },
      {validator: checkEmail, trigger: 'blur'}],
      mobile:  [{
        required: true, message: '请输入手机号', trigger: 'blur'},
      {validator: checkMobile, trigger: 'blur'}]
      },
      //  控制修改用户对话框的显示与否
      editDialogVisible: false,
      //  查询到的用户信息对象
      editForm: {},
      //  修改表单的验证规则对象
      editFormRules: {
        email: [
          { required :true, message: '请输入用户邮箱', trigger: 'blur'},
          {validator: checkEmail, trigger: 'blur'}
        ],
        mobile:
        [{
          required: true, message: '请输入手机号', trigger: 'blur'},
          {validator: checkMobile, trigger: 'blur'}
      ]

      },
      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      //需要被分配角色的用户信息
      userInfo: {},
      //所有角色的数据列表
      rolesList:[],
      //已选中的角色Id值
      selectedRoleId: ""
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    //  监听 pagesize改变的事件
    handleSizeChange(newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //  监听 页码值改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //  监听switch开关状态的改变
    async userStateChanged(userinfo) {
      console.log(userinfo)
      const { date: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败!')
      }
      this.$message.success('更新用户状态成功')
    },
    //  监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //  点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return 
        //  可以发起添加用户的网络请求
        const {data: res} = await this.$http.post('users',this.addForm)
        
        if(res.meta.status !== 201){
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        //  隐藏添加用户的对话框
        this.addDialogVisible = false
        //  重新获取用户列表
        this.getUserList()
      })
    },
    //  展示用户编辑的对话框
    async showEditDialog(id){
      //console.log(id)
      const { data: res } = await this.$http.get('users/' + id)

      if(res.meta.status !== 200){
        return this.$message.error('查询用户信息失败!')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    //  监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //  修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return 
        //发起修改用户信息的数据请求
        const { data: res} = await this.$http.put('users/' + this.editForm.id,
        {email: this.editForm.email,
        mobile: this.editForm.mobile
      })
        if (res.meta.status !== 200){
          return this.$message.error('更新用户信息失败')
        }
        //关闭对话框
        this.editDialogVisible = false
        //刷新数据列表
        this.getUserList()
        //提示修改成功
        this.$message.success('更新信息成功')
      })
    },
    //  根据id删除对应的用户信息
    async removeUserById(id) {
      //询问用户是否删除
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err =>{return err})

        //  如果用户确认删除，则返回值为字符串 confirm
        //如果用户取消了删除，则返回值为字符串 cancel
        if(confirmResult !== 'confirm'){
          return this.$message.info('已取消删除')
        }
        const {data: res} = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200){
          return this.$message.error('删除用户失败')
        }
        this.$message.success('删除用户成功!')
        this.getUserList()
    },
    //展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo

      //在展示对话框之前，获取所有角色的列表
      const {data: res} = await this.$http.get("roles")
      if(res.meta.status !== 200){
        return this.$message.error("获取角色列表失败！")
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //点击按钮，分配角色
    async savaRoleInfo() {
      if(!this.selectedRoleId) {
        return this.$message.error("请选择要分配的角色！")
      }
      const {data: res} = await this.$http.put("user/${this.userInfo.id}/role",
      {
        rid: this.selectedRoleId
      })
      if(res.meta.status !== 200){
        return this.$message.error("更新角色失败！")
      }
        this.$message.success("更新角色成功！")
        this.getUserList()
        this.setRoleDialogVisible = false
      },
      //监听分配角色对话框的关闭事件
      setRoleDialogClosed(){
        this.selectedRoleId = ""
        this.userInfo = ""
      }
      
    }


    }
  
</script>

<style lang="less" scoped>
</style>
